Inside the Process: What to Expect During a Shower or Tub Replacement Project

Jul 20

Replacing a shower or bathtub is a major step in upgrading your bathroom. Whether you're modernizing an outdated space or addressing long-term damage, knowing what to expect from start to finish helps reduce stress and improve results. In this guide, we walk you through the full process of a typical shower or tub replacement project—from consultation to final inspection—so you can prepare properly and avoid surprises.

1. Initial Consultation and Planning

The process begins with an in-home consultation or site visit by a remodeling contractor or bathroom specialist. During this stage, the professional will:

Inspect the current shower or tub
Measure the space accurately
Discuss your goals, style preferences, and functional needs
Evaluate plumbing accessibility
Review product options (materials, finishes, door styles, etc.)

You’ll receive a detailed estimate and project timeline. This is the right time to ask questions about material durability, layout changes, and long-term maintenance. For a more detailed overview of what professional installation services involve, explore our professional guide to shower and tub replacement services.

2. Product Selection

Once the scope is set, you’ll choose your new shower or tub and accompanying features. Common choices include:

Bathtubs: alcove, freestanding, corner, drop-in
Showers: walk-in, barrier-free, or custom-tiled
Materials: acrylic, fiberglass, cast iron, porcelain, stone composite
Accessories: grab bars, built-in niches, benches, sliding or hinged doors

If you’re still deciding which bathtub style best suits your space and lifestyle, this practical guide to choosing the right bathtub covers key features, benefits, and sizing tips to help you make a confident decision.

Make sure your selection matches your plumbing layout or expect changes to be made during installation.

If you're balancing upgrades with cost-conscious choices, you might find inspiration in our guide on how to plan a budget bathroom remodel without sacrificing style.

3. Permits and Preparation

Depending on your location and the extent of the work, a permit may be required—especially if plumbing, electrical, or structural changes are involved. Your contractor typically handles this part.

Before the work begins:

Clear out personal items from the bathroom
Provide access to the work area
Protect nearby flooring or furniture from dust

Most projects take 1 to 5 days, depending on complexity. Some installations may involve drywall patching or tiling after the main fixture is set.

4. Demolition and Removal

The first active step is removing the old tub or shower. This includes:

Shutting off water supply
Disconnecting existing plumbing
Removing tile or panels
Lifting out the tub or dismantling the shower

This phase is noisy and messy. Professionals typically use dust barriers and protect surrounding surfaces. If mold or water damage is found behind the walls, repairs may be added to the project.

5. Plumbing and Subfloor Inspection

After the fixture is removed, the rough-in plumbing and subfloor are inspected. Your contractor checks:

Drain and supply line condition
Pipe placement for the new fixture
Subfloor integrity and leveling
Wall studs for support and alignment

Repairs or upgrades may be done to bring the plumbing up to code or to accommodate a different tub/shower size or layout.

6. Installation of the New Shower or Tub

With the base prepped and plumbing ready, the new unit is installed. Steps vary slightly depending on the design, but typically include:

Setting the tub or shower base securely in place
Connecting drain lines and water supply
Sealing all seams and joints
Installing wall panels or tiles
Placing shower doors, fixtures, and accessories

Waterproofing is a key part of this process. If tile is used, proper backer boards and waterproof membranes will be installed to protect the structure.

7. Caulking, Sealing, and Drying Time

After everything is in place, caulk is applied around joints and seams to ensure a watertight seal. Silicone-based caulk is commonly used in wet areas. Drying times vary—usually 24 hours—before the bathroom can be used again.

The contractor will test for leaks and confirm that all plumbing connections are secure.

8. Cleanup and Final Inspection

Once the job is complete, your contractor will clean the area, remove debris, and ensure the space is functional and safe. A final walkthrough includes:

Verifying proper water flow and drainage
Confirming fixture placement and stability
Reviewing care and maintenance guidelines
Addressing any touch-ups or minor adjustments

You’ll also receive warranty details for both labor and materials.

9. Aftercare and Maintenance Tips

To protect your new investment, follow these post-installation care tips:

Avoid harsh cleaners, especially on acrylic or fiberglass
Wipe down shower walls or tub after use to prevent mineral buildup
Reseal grout lines or caulk annually (if tiled)
Check for moisture buildup or mold near corners and joints

To ensure your shower or tub looks and performs like new for years to come, follow this complete guide to caring for your new tub or shower with practical, long-term maintenance tips.

Your contractor may recommend specific cleaning products based on the material.

Final Thoughts

Replacing a shower or bathtub involves more than just swapping fixtures. It requires careful planning, professional installation, and follow-through on the small details. By knowing what to expect, you can prepare effectively, make informed decisions, and enjoy your upgraded space with confidence. Always work with licensed professionals and be proactive about maintenance to get the most out of your investment.